Lamp



FIG. 1 is a perspective view of my new design for a lamp;

FIG. 2 is a side elevational view of my new design for a lamp;

FIG. 3 is a front elevational view of my new design for a lamp;

FIG. 4 is a side elevational view of my new design for a lamp showing the side opposite that shown in FIG. 2;

FIG. 5 is a rear elevational view of my new design for a lamp;

FIG. 6 is a top plan view of my new design for a lamp; and,

FIG. 7 is a bottom plan view of my new design for a lamp. 

The ornamental design for lamp, as shown and described. 